Let En= - 1 m e 4 8 ε 0 2 n 2 h 2 be the energy of the nth level of H atom. If all the H-atoms are in the ground state and radiation of frequency E 2 - E 1 h  falls on it

(a) It will not be absorbed at all

(b) Some of atoms will move to first excited state

(c) All atoms will be excited to the n= 2 state

(d) No atoms will make a transition to then n=3 state

0 2 Views | Posted 3 months ago
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    Answered by

    Vishal Baghel | Contributor-Level 10

    3 months ago

    This is a Multiple Choice Questions as classified in NCERT Exemplar

    Answer- (b, d)

    Explanation- when a radiation of energy fall on it some atoms would be excited but not all would be excite also no atom will go to 3 level some go to 2 level also but not all excite to 2 level. So by considering these facts we can say b and d option are correct

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Kindly go through the solution

 

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